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What prompted you to investigate this topic/problem?In the last few years, many sport physiologists and coaches approached us trying to find alternatives to the current way (discrete and invasive) to estimate the concentration of lactate in blood. Accordingly, we came up with the idea of a wearable sensor based on a limiting diffusion membrane capable of measuring lactate in sweat accurately at the expected concentrations. What is the most significant result of this study?We have analyzed the correlations of real‐time sweat lactate, measured with our analytically validated wearable biosensor, with physiological parameters typically recorded in sports laboratories (blood lactate, Borg scale for the rating of perceived exertion, heart rate, power output, blood glucose, and respiratory quotient). We found that the heart rate, power output, Borg scale, and blood lactate relate to sweat lactate in independent individuals during cycling activity. Hence, we demonstrate the potential to associate non‐invasive, quantitative, and personalized analysis with sport practice.What do you consider the exciting developments in the field?Wearable (bio)chemical sensors are becoming a more mature and trustable technology owing to the multidisciplinary effort that put together electronics, software, fluidics, the sensing&transduction elements and adequate protocols for measurements, data treatment, interpretation and validation. We firmly believe that wearable (bio)chemical sensors will contribute to solve current challenges already identified in personalized healthcare and wellbeing.What future opportunities do you see (in the light of the results presented in this paper)?We foresee a lactate bodily‐worn sensor to obtain personalized sweat lactate trends while performing sport. The information is to be utilized to both preserve the individual health condition and support the physical training and practice. Yet, there are some aspects (from the physiological point of view) to be assessed and confirmed, and we hope to understand those in the next pilot tests.What other topics are you working on at the moment?We are also working on microneedles sensing technology for the detection of biomarkers.
Analysis & Sensing – Wiley
Published: Jul 1, 2023
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